Re: [mpls-linux-general] UDP traffic problem
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Re: [mpls-linux-general] UDP traffic problem
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From: Chris R. <Chr...@nr...> - 2008-02-13 15:03:08
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Not familiar with the PHP implementation, let me collect up the test configuration and send it to you for advice on what you want. A test update, the problem seems, so far, to only manifest itself with dns and traceroute. An "iperf -u -c [target_ip}" test does not have a problem. James R. Leu wrote: > I haven't seen it, but I can look into it. Can you try routing traffic > through the same boxes, but use PHP (ie NHLFE without push) at each hop > to see if that breaks it too? > > On Tue, Feb 12, 2008 at 06:22:25PM -0500, Chris Robson wrote: > >> Anyone notice udp traffic problems through a LER<->LSR<->LER LSP? For >> example, if I attempt to issue the command "traceroute -n [target-ip]" >> the traceroute will fail. If I add the TCP switch, aka "traceroute -n >> -T [target-ip]", the trace works fine. Also, any nslookups fail, again >> because the lookup request are udp packets. Wireshark is showing >> checksum errors on the traceroute packets but I'm not sure that is >> causing the problem as the error maybe misleading. >> >> >> James R. Leu wrote: >> >>> If the goal is to use NFS as root filesystem all one needs to do is create >>> a initrd with the NFS modules, it is not required to build a kernel >>> with NFS statically included. >>> >>> The key to allowing this to happen is you need to make sure your >>> /etc/fstab has an entry for the root filesystem that spells out what NFS >>> resource to use. >>> >>> For example: >>> >>> 172.16.1.1:/my/nfs/root / nfs defaults 0 0 >>> >>> Then install the MPLS enabled kernel RPM and as part of that it builds >>> an initrd, and now that you have a fstab that indicates where to get root >>> from it should build you a nfs enabled initrd. >>> >>> On Sun, Feb 10, 2008 at 05:12:44PM +0200, Adrian Popa wrote: >>> >>> >>>> James, the original problem was that he needs NFS compiled into the kernel >>>> in order to boot and the binary kernel you provide has it as a module... >>>> >>>> On Feb 9, 2008 6:07 AM, James R. Leu <jl...@mi...> wrote: >>>> >>>> >>>> >>>>> I haven't really been following along with your setup, so excuse me >>>>> if I'm asking questions that you already answered. >>>>> >>>>> Why are you install SRPMs as opposed to the binary RPMs? If you're >>>>> on a different distribution and compiling them by hand, please include the >>>>> commands you used to do the compilation and installation. >>>>> >>>>> On Fri, Feb 08, 2008 at 06:45:09PM +0530, Bhartendu Maheshwari wrote: >>>>> >>>>> >>>>>> Hello All, >>>>>> >>>>>> >>>>>> >>>>>> I have compiled and installed 2.6.22 mpls enabled >>>>>> kernel(kernel-2.6.22.5-76.fc7.mpls.1.958.src.rpm), and also installed >>>>>> the following packages:- >>>>>> >>>>>> >>>>>> >>>>>> ebtables-2.0.8-1.fc7.mpls.1.958b.src.rpm >>>>>> >>>>>> iproute-2.6.20-2.fc7.mpls.1.958b.src.rpm >>>>>> >>>>>> iptables-1.3.8-2.1.fc7.mpls.1.958.src.rpm >>>>>> >>>>>> >>>>>> But unable to find mpls utility to configure system, please let me know >>>>>> if I am missing any package or any patch. >>>>>> >>>>>> >>>>>> >>>>>> System Information:- >>>>>> >>>>>> >>>>>> >>>>>> [root@localhost linux-2.6.22]# cat /var/log/dmesg | grep MPLS >>>>>> >>>>>> MPLS: version 1.958 >>>>>> >>>>>> MPLS: protocol driver interface - <jl...@mi...> >>>>>> >>>>>> MPLS: IPv4 over MPLS support >>>>>> >>>>>> MPLS: Ethernet over MPLS support >>>>>> >>>>>> [root@localhost linux-2.6.22]# sysctl -A|grep os >>>>>> >>>>>> kernel.ostype = Linux >>>>>> >>>>>> kernel.osrelease = 2.6.22.5 >>>>>> >>>>>> kernel.hostname = localhost.localdomain >>>>>> >>>>>> net.core.message_cost = 5 >>>>>> >>>>>> net.ipv4.route.error_cost = 1000 >>>>>> >>>>>> net.netfilter.nf_conntrack_tcp_timeout_close_wait = 60 >>>>>> >>>>>> net.netfilter.nf_conntrack_tcp_timeout_close = 10 >>>>>> >>>>>> net.netfilter.nf_conntrack_tcp_loose = 1 >>>>>> >>>>>> dev.cdrom.info = Can close tray: 1 >>>>>> >>>>>> dev.cdrom.autoclose = 1 >>>>>> >>>>>> [root@localhost linux-2.6.22]# >>>>>> >>>>>> >>>>>> >>>>>> Kernel Configuration enabled are:- >>>>>> >>>>>> >>>>>> >>>>>> 1. >>>>>> >>>>>> In Networking Options the following items will be compiled in kernel : >>>>>> >>>>>> <*> Multiprotocol Label Switching >>>>>> >>>>>> <*> MPLS: Virtual tunnel interface >>>>>> >>>>>> <*> 802.1d Ethernet Bridging >>>>>> >>>>>> <*> Bridge: MPLS support >>>>>> >>>>>> >>>>>> >>>>>> 2. >>>>>> >>>>>> In Bridge: Netfilter configuration menu the following minimum options >>>>>> will be selected: >>>>>> >>>>>> <*> Ethernet Bridge tables (ebtables) support >>>>>> >>>>>> <*> ebt: broute table support >>>>>> >>>>>> <*> ebt: filter table support >>>>>> >>>>>> <*> ebt: nat table support >>>>>> >>>>>> <*> ebt: 802.3 filter support >>>>>> >>>>>> <*> ebt: MPLS target support >>>>>> >>>>>> >>>>>> >>>>>> 3. >>>>>> >>>>>> In Networking Options select QoS and fair queueing >>>>>> >>>>>> >>>>>> >>>>>> Thanks & Regards >>>>>> >>>>>> Bhartendu M. >>>>>> >>>>>> >>>>>> Conexant E-mail Firewall (Conexant.Com) made the following annotations >>>>>> --------------------------------------------------------------------- >>>>>> ********************** Legal Disclaimer **************************** >>>>>> >>>>>> "This email may contain confidential and privileged material for the >>>>>> >>>>>> >>>>> sole use of the intended recipient. Any unauthorized review, use or >>>>> distribution by others is strictly prohibited. If you have received the >>>>> message in error, please advise the sender by reply email and delete the >>>>> message. Thank you." >>>>> >>>>> >>>>>> ********************************************************************** >>>>>> >>>>>> --------------------------------------------------------------------- >>>>>> >>>>>> >>>>>> >>>>> ------------------------------------------------------------------------- >>>>> >>>>> >>>>>> This SF.net email is sponsored by: Microsoft >>>>>> Defy all challenges. Microsoft(R) Visual Studio 2008. >>>>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >>>>>> _______________________________________________ >>>>>> mpls-linux-general mailing list >>>>>> mpl...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/mpls-linux-general >>>>>> >>>>>> >>>>> -- >>>>> James R. Leu >>>>> jl...@mi... >>>>> >>>>> ------------------------------------------------------------------------- >>>>> This SF.net email is sponsored by: Microsoft >>>>> Defy all challenges. Microsoft(R) Visual Studio 2008. >>>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >>>>> _______________________________________________ >>>>> mpls-linux-general mailing list >>>>> mpl...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/mpls-linux-general >>>>> >>>>> >>>>> >>>>> >>> >>> ------------------------------------------------------------------------ >>> >>> ------------------------------------------------------------------------- >>> This SF.net email is sponsored by: Microsoft >>> Defy all challenges. Microsoft(R) Visual Studio 2008. >>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> mpls-linux-general mailing list >>> mpl...@li... >>> https://lists.sourceforge.net/lists/listinfo/mpls-linux-general >>> >>> >> -- >> Christopher Robson >> Senior Computer Scientist, GS-15 >> Naval Research Laboratory >> Center for Computational Science >> Networking, Code 5591 >> 4555 Overlook ave. >> Washington, D.C. 20375-5320 >> (COM) 202-404-3138 >> (VoIP) 2024043138@GIGEF >> (CHAT) Chris.Robson@GIGEF >> >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by: Microsoft >> Defy all challenges. Microsoft(R) Visual Studio 2008. >> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >> _______________________________________________ >> mpls-linux-general mailing list >> mpl...@li... >> https://lists.sourceforge.net/lists/listinfo/mpls-linux-general >> > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > ------------------------------------------------------------------------ > > _______________________________________________ > mpls-linux-general mailing list > mpl...@li... > https://lists.sourceforge.net/lists/listinfo/mpls-linux-general > -- Christopher Robson Senior Computer Scientist, GS-15 Naval Research Laboratory Center for Computational Science Networking, Code 5591 4555 Overlook ave. Washington, D.C. 20375-5320 (COM) 202-404-3138 (VoIP) 2024043138@GIGEF (CHAT) Chris.Robson@GIGEF |
